3.7.19 Conference Summary

Ultrasound Jeopardy - Dr. Jason Tehranisa, Ultrasound Fellow

Posterior acoustic shadowing = shadowing that is seen deep to an echodense/hyperechoic structure (i.e. gallstone) due to its high attenuation; prevents visualization of true anatomy

Posterior acoustic enhancement = when the area deep to a low attenuating structure appears hyperechoic due to greater amount of returning echoes; most commonly seen deep to fluid-filled structures, i.e. bladder

Reverberation = artifact where sound waves bounce back and forth between two strong reflectors before returning to the probe, creating multiple equally spaced echoes (i.e. A lines)

Anisotropy = normal finding; tendons change echogenicity based on angle of probe; can be misinterpreted as free fluid